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But, we replace our forests with cities, highways & golf courses.

Emissions Reduction Option 1: Increase the use of carbon sinks (such as forests where 70% of all photosynthesis occurs). But, we replace our forests with cities, highways & golf courses. Stop destroying forests, and grow more trees. The forest cover is already too small

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But, we replace our forests with cities, highways & golf courses.

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  1. Emissions Reduction Option 1: Increase the use of carbon sinks (such as forests where 70% of all photosynthesis occurs). But, we replace our forests with cities, highways & golf courses. Stop destroying forests, and grow more trees.

  2. The forest cover is already too small to help reducing global warming. How long does it take to grow a tree like this?

  3. Emissions ReductionOption 2: Change to non-CO2 emitting energy sources What are they? Nuclear Hydro Renewables (Geothermal, Solar, Wave, Tidal, Wind, Biomass and Biogas) Muscle Power

  4. Energy from sustainably managed renewable sources Ulf Bossel – October 2005

  5. World Energy Consumption by Fuel (in 1015 BTU) http://www.eia.doe.gov/pub/international/iealf/table18.xls

  6. World Energy Consumption by Fuel (in %) http://www.eia.doe.gov/pub/international/iealf/table18.xls

  7. World Energy Consumption by Fuel (in %) http://www.eia.doe.gov/pub/international/iealf/table18.xls

  8. World Energy Consumption by Fuel (in %) http://www.eia.doe.gov/pub/international/iealf/table18.xls

  9. There is no immediate financial benefits for a switch to renewable energy in the profit-oriented energy markets.

  10. Emissions Reduction Option 3: Reduce Population More people More pollution

  11. Electricity use in 2006 If you are in USA, you will be lighting 18.5 bulbs, each with 200 W power If you are in China, you will be lighting 3 bulbs, each with 200 W power

  12. in 2005

  13. in 2005

  14. CO2 emissions per capita has stronger links with GDP per capita than with population.

  15. Emissions Reduction Option 4: Carbon Capture & Storage (CCS) Controversial since permanent storage of CO2 underground is not guaranteed

  16. Controversial since the impacts on marine ecosystem (very fragile) are not known

  17. Discussion Point 7: What could you do to limit the CO2 emissions below the sustainable limit as an engineer? Take 10 mins.

  18. Food for thought: • What are the Engineering Challenges to sustainability? • 􀂃 Global climate change • 􀂃 Energy production and use • 􀂃 Food production • 􀂃 Resources depletion • 􀂃 Toxics in the environment • 􀂃 Making sustainable lifestyles attractive Base for your CP551 project

  19. The supreme Greek God Zeus told Prometheus: “You may give men such gifts as are suitable, but you must not give them fire for that belongs to the Immortals.” – Roger Lancelyn Green Tales of the Greek Heroes Puffin Classics

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